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A. G. WALWORTH.

RADIATOR. No. 309,588. Patented Dec. 23, 1884.

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ARTHUR G. VALXVORTH, OF NEVTON, llIASSACHUSETTS.

RADIATOR.

EPECIFICATION forming part of Letters Patent No. 309:588, dated December 23, 188%.

Application filed March 29, 1884.

To (LZZ whom it may concern:

Be it known that I, ARTHUR QWALwoR'rir, of Newton, county 01 Middlesex, and State of ll'lassachi'lsetts,have invented an Improvement in Radiators, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

Steam-radiators such as now commonly in use,and made of cast or wrought iron, are provided with inlet and escape valves, which are opened more or less to control the amount of heat which is to be thrown off by the radiators, and the steam in the latter is condensed more or less rapidly, according to the temperature of the atmosphere in the room. \Vhen the radiator becomes toohot or the room too much heated, the steam is shut off, and is usually left shut off until the apartment becomes too cool. In seeking to avoid frequent opening and closing of the valves of the radiator, economize steam, and maintain a steady uniform heat therein, yet control the amount of heat which shall be admitted into an apartment, I have devised for the radiator a jacket which may be made to more or less cover the radiator, so that more or less of its surface may be acted upon by the air in the apartment, and, if desired,the entire radiator may be covered, so that the air in the apartment will not circulate in contact therewith, but the air imprisoned about the radiator and between it and the cover therefor will be heated, and,being heated,will not act to so rapidly condense the steam in the radiator, and consequently the steam may be kept in slow circulation and yet not heat the apartment.

Figure 1 is a front elevation, partially broken out, of one form of apparatus embodying my invention, the said figure showing a radiator set in a case, part of which is stationary, while another part is movable, the latter part being made as a curtain. Fig. 2 is a section of Fig. 1 on the dotted line a; w, and Fig. 3 is a modification.

The radiator A, of cast or wrought metal, may be of any usual shape, and will be provided, as usual, with suitable inlet and escape valves. (Notshowu) Thejaeketoftheradiator in the present embodiment of my invention is (No model.)

composed of rigid material-such as wood or marble-and lettered a a a, and a flexible or movable portion, 1), herein shown as a curtain. The jacket is shown asset against a side wall, 0. The flexible portion I), as herein shown, is attached at its upper end to a spring-actuated roller, (1, such as commonly used for curtainrollers, so that the curtain-like portion I) may be automatically wound thereon when the bar 6 of the portion I) is lifted. The ends of the bar (2 are no thicker than the curtain band, and are subjected to friction between the inner side of the front pieces, a a and springpressed bars ff, acted upon by springs g and h, the latter being connected with the top part, a, by suitable screws,2, and to the upper end of the bar, while the spring g is held on a screw, on.

The object of the bars f is not only to hold in place the bar a, but more especially to hold the curtain b tight against the front pieceara, and prevent all circulation of air through crevice between bars f and the part a. In raising the bar 6 by the hook k it will be canted so as to throw back the bars f and release ourtain 0 through its whole length. The pres..- ure of the spring-bars on the bar 6 is sufiicient to overcome the strength of the springin the roller (Z.

In Fig. 3 the radiator A is shown of circu- .lar form, and is entirely enveloped bya flexible curtain like jacket, b, which is attached to a top portion, a, and is free to drop down to the floor, a cord, a, extended through rings n,beiug joined to rings a at the lower edge of the said .portion 1), by which to lift the said jacket when disengaged from the hooks p at the radiator-base.

I do not desire to limit my invention to the precise form of apparatus shown, or to the extent of the flexible portion of the jacket, the chief aim of my invention being to provide a radiator with a jacket, so that a portion or all of the radiator may be covered, the ra diator being entirely shut in or muffled when the heatis to be subdued, and being lifted when the radiator is to be used to heat the air in the apartment.

The jacketed radiator may be placed near a door or window, and the rigid part of the jacket may have connected with it a cold-air pipe, :asat r,.having a suitable-valve ,to admit oold=or fresh air, as may be desired, the said valve being closed as the flexible portion of 5 the radiator-cover is drawn down, and being opened as the said portion is moved to uncover the radiator." This is shown in dotted lines, Fig. 2, wherein the valve is shown at r, pivoted at r, and having an arm, 1, acted upon IO by a spring, a.

In Figs. 1 and 2 the radiator-jacket is made to-resemble a mantel-piece, D. g

I-am'aware" that'a heating apparatus comprising a rigid casing having openings at the I 5 top and bottom thereof, provided with simultaneously-operated valves, and asteam-radiatorin'closed in said casing, so that when the valvesare opened cold air will enter the casingat Ithebottom and escape therefrom at the 26 top in a heated condition,is old; but I am not awarerof an instance heretofore where an adj ustable flexible covering for a portion or the whole of the, radiator has been proposed, so that-the radiator or asuitable portion thereof 2 5 'could be exposed for direct radiation of heat in the room.

I clairn- 1. A steam-radiato1,.A, provided'with an adjustable flexible covering or curtain, b,

,whereby the entire radiator or a suitable por- 0 tion thereof may be exposed for the direct radiation of heat, substantially as shown and described.

2. A steam-radiator, A, having a portion of its covering made as an adjustable flexible 5 portion or curtain, b, combined with means to retain said adjustable covering in any position to which it may be adjusted, whereby the amount of surface exposed for the radiation of heat may be regulated as desired, as set 0 forth.

3. A steam-radiator, a rigid case to receive it, and a flexible portion or cover, combined with clamps to hold the edges of the said cover against the rigid part, as described, 5 when the cover isdrawn into position to muffle the radiator, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ARTHUR O. \VALWORTH. Witnesses:

G. W. GREGORY, W. H. SIGSTON. 

